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  1. K

    vaillant ecomax 824 boiler how do i set the water and radiat

    Thanks but no joy My boiler has a plus and negative buttons and below is a radiator button and tap hot water button From what I could remember is that I press the rad button for instance and hold it till the level setting flashes its existing setting and then you can increase or decrease the...
  2. K

    vaillant ecomax 824 boiler how do i set the water and radiat

    I have lost my instructions so could someone tell me how to adjust the temp of the hot water and radwater temp cheers kieron
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